There are six ocular muscles that control how we move our eyes. Our eyes can rotate by using two muscles to move the eye up and down, two to the left and right, and two more. Our eyes can maintain a single point of focus when eye muscles are functioning normally. However, the eyes do not move in unison when squint ocular muscle function is compromised. This is referred to as strabismus or squint. The squint (Misalignment) may be horizontal, divergent (outwards), or convergent (inwards) (Up or Down). Squinting can occasionally be brought on by brain problems. Squinting impairs binocular vision as well, making it challenging for a person to understand the stereopsis, or depth or distance, of an object.
Causes of Strabismus or Eye Squinting
Types of Squint:
• Congenital refers to a condition that a person is born with. Premature babies with retinal damage or an eye tumor.
• Hereditary: If a gene is linked to or associated with a condition, such as Down syndrome.
• Squinting occurs when six ocular muscles have trouble being controlled and working properly. Any type of trouble with the nerves and brain regions that regulate the extraocular muscles could be the cause of this condition.
• A number of vision disorders such as astigmatism, hypermetropia, and myopia. Squinting can also be caused by conditions like cerebral palsy (poor muscular coordination), brain tumors, or hydrocephalus (fluid in the brain).
• Some viral illnesses, like measles, can cause squinting.
Early detection and diagnosis are essential. The child’s eyes must be checked between the ages of three months and three years. If glasses are required, they should be prescribed as soon as possible. Before the age of three months, an infant with a family history of amblyopia should have their eyesight examined. The retina, the corneal light reflex, and vision should all be tested in order to diagnose squint eye.